The Douglas basin area includes about 1,200 square miles in southeastern Arizona. The main use of ground water is for irrigation. For 1955-77, the estimated ground-water pumpage equaled or exceeded 50,000 acre-feet per year, and for 1966-77, the ground-water pumpage averaged about 109,000 acre-feet per year. Ground-water withdrawals have resulted in water-level declines in most of the area. Information shown on the maps includes change in water level (1966-78) and irrigated area; depth to water and altitude of the water level; and chemical quality of the water and well depth. Hydrographs of the water level in selected wells and a table of historical pumpage also are included. Scale 1:125,000.
Maps showing ground-water conditions in the Douglas Basin area, Cochise County, Arizona: 1978